Home / 120,636.74-180,770.54-64,484.81

Finding the Fourth Proportional to 120,636.74, 180,770.54 and 64,484.81

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Solution

The fourth proportional to 120,636.74, 180,770.54 and 64,484.81 is: 96,628.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,636.74 : 180,770.54 = 64,484.81 : x
  2. Step 2: Convert to fraction form
    120,636.74/180,770.54 = 64,484.81/x
  3. Step 3: Cross multiply
    120,636.74x = 180,770.54 × 64,484.81
  4. Step 4: Simplify right side
    120,636.74x = 11,656,952,699.22
  5. Step 5: Solve for x
    x = 11,656,952,699.22/120,636.74
  6. Step 6: Final answer
    x = 96,628.55

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.